|
Search for a video theme of your choice.
swimming pool Store
Click Here
|
 |
Liquid Nitrogen and the spinning ping pong ball
Posted by: petersplim
Video duration: 89 seconds
2 holes are punctured at a slanting/glacing angle into a ping pong ball. It is then immersed in liquid nitrogen. The air inside it cools. This lowers the air pressure inside the ping pong ball. Liquid nitrogen then partly fills the ping pong ball. The ping pong ball will start to spin as cold liquid nitrogen boils shooting out cold nitrogen gas from these 2 holes.
Related: ball, liquid, nitrogen, peterlim, ping, pong, spinning
|
|
 |
Liquid nitrogen shrinking a helium filled balloon
Posted by: petersplim
Video duration: 58 seconds
A helium-filled balloon is less dense than air and it can float upwards. When the balloon is shrunk by pouring liquid nitrogen over it, it becomes denser than air and falls to the ground.
Upon warming and expanding, it will fly up again.This video is produced in Singapore. More videos on www.plenrich.com
Related: balloon, helium, liquid, nitrogen
|
|
![Liquid nitrogen poured onto students\](http://img.youtube.com/vi/zJwOTFm6DWg/2.jpg "Liquid nitrogen poured onto students\") |
Liquid nitrogen poured onto students' hand
Posted by: petersplim
Video duration: 209 seconds
Very cold liquid nitrogen vapourises immediately upon contact with warm object s like our skin. The vapour forms an insulating layer preventing more heat being lost from our warm palms. Caution: do not did your hand into liquid nitrogen for more than 1 second. Do visit our education website at www.PLsingapore.com
Related: coronation, cp, hand, liquid, nitrogen, petersplim, pl
|
|
 |
Liquid Nitrogen boiling in a whistling kettle
Posted by: petersplim
Video duration: 51 seconds
Liquid nitrogen boils at -196 degree Celsius. When the liquid boils out of a whistling kettle, it makes the latter whistle, but the kettle is cold and not hot as common perception of a whistling kettle whistling is associated with boiling hot water.
Related: liquid, nitrogen
|
|
 |
PL students munching liquid nitrogen-cooled biscuits
Posted by: petersplim
Video duration: 243 seconds
When very cold liquid nitrogen cools the humid air inside our mouth,condensed droplets of water form. They come out through our nostril as "smoke"
Related: liquid, lucia, nitrogen, petersplim, pl, plenrich, plsingapore, tabitha, ulindra, zhexuan
|
|
 |
Physics Balloons expanding in a vacuum 2007 Sec 1 @ JE
Posted by: petersplim
Video duration: 201 seconds
Related: 1, 2007, @, a, balloons, expanding, in, je, physics, sec, vacuum
|
|
|
